Improvement in wheels for vehicles



W. MONT'GOMERY.

Wheels for Ve hicles.

Patented Dec. 29,1874.

TE T FFIGE.

VVlLLIAM MONTGOMERY, OF OSKALOOSA, IOYVA.

IMPRQVEMENT IN WHEELS FOR VEHICLES.

Specification forming part of Letters Patent No. l5,29, dated December 29, 1874; application filed October 9, 1874.

To all whom it may concern Be it known that I, WILLIAM MONTGOM- ERY, of Oskaloosa, in the county of Mahaska and State of Iowa, have invented an Improved Wheel for Vehicles, of which the following is a specification:

My invention relates to certain improvements in that class of wheels constructed with a metal hub and wooden spokes, and in a novel construction of such hub and spokes, as hereinafter particularly described, whereby a wheel that is very light, yet strong and durable, is obtained at a small cost.

In the accompanying drawing, Figure l is a side view, partly in section, of the central portion of a wheel constructed according to my invention. Fig. 2 is a View of the inner side of one of the flanges. Fig. 3 is a similar view of the other flange. Fig. 4 is a perspective View, showing the arrangement of the spokes.

A represents the rear or inner flange, which is formed with a central perforation, a, for the reception of a hollow shank or boxing, B. 011 the inner side of the flange A near its periphery, are partitions or bars (3, which are cast with said flange, and extend from it, in a direction parallel with its axis, for a distance somewhat greater than the thickness of the spokes. The inner side of said flange is slightly concave, and the corresponding sides of the tenons of the spokes are beveled to correspond therewith. Between the bars 0 and the center of the flange is an annular rib, d, for engagement with the sides of the tenons of the spokes. The front or outer flange E is formed with a hollow shank, 0, extending from the center of its outer side, and receiving the front portion of the boxing B. The inner side of the flange E has a number of recesses or depressions, f, formed near its periphery, corresponding in form and size with the ends of the bars 0 on the flange A. Said bars 0 are of wedge shape, as shown .in'Fig. 2, and the depressions f are of triangular shape, as shown in Fig. 3. The bars 0 also taper slightly toward their ends. The boxing B has formed on its outer surface, near its rear end, an annular shoulder, g, for engagement with the rear side of the flange A, and near its front end is a screw-thread, h, for engagement with an internal thread formed in the shank e.

The spokes J may be of any suitable form and size outside of the edges of the flanges.

The tenons z are formed with a double taper -that is to say, they are wedge-shaped or tapering toward their ends, and also from one edge toward the other-so that when placed together in the wheel the narrowest portions of every alternate tenon lie in one direction, and the corresponding portions of the intermediate tenons lie in the opposite direction, as shown in Fig. 4E.

On the opposite sides of each tenon are depressions j, each of which has a depth equal to one'half of the thickness of one of the bars 0, so that when two spokes are placed together, with one of the bars between them, the shoulders formed by the upper portions or the depressions rest upon the upper sides of the bars 0, and the inner sides of the tenons bear against each other firmly and solidly.

The edges of the flanges are rounded, so as not to cut or mar the sides of the spokes.

The metallic portions of this wheel may be galvanized, or coated with porcelain, to protect them from rust and decay.

In putting the wheel together the alternate spaces between the bars 0 are filled by placing the spokes in position, with the widest edges toward the flange A. The intermediate spaces are then filled by placing the remaining spokes in position, with their narrowest edges toward the flange, so that the tenons will lie in the positions shown in Figs. 2 and 4, with the bars 0 filling the depressions j. The flange E is then placed in position, so that the ends of the bars 0 will ongage with the depressions f, as shown in Fig. l. The wheel is then placed between two caps, and clamped by means of screw-bolts passing through the caps, so as to press the tenons i firmly between the flanges A and E. The boxing B is then inserted in place and screwed home, so as to hold the parts in place,

above said tenons, and the boxing 13, formed with the shoulder g and screw-head h, substantially as and for the purpose shown and described.

WILLIAM MONTGOMERY.

Witnesses:

I. F. SHRoNTz, L. G. MANTAMON. 

